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    <title>课程表</title>
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<h1 style="font-family:arial;color:black;">课程表</h1>
<table border="1" width="400px" height="400px">
    <tr>
        <td>   </td>
        <td>星期一</td>
        <td>星期二</td>
        <td>星期三</td>
        <td>星期四</td>
        <td>星期五</td>
    </tr>
    <tr>
        <td rowspan="4" align="center"> 上午</td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
    </tr>
    <tr>
        <td>   </td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
    </tr>
    <tr>
        <td>   </td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
    </tr>
    <tr>
        <td>   </td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
    </tr>
    <tr>
        <td colspan="6" align="center">午休</td>
    </tr>
    <tr>
        <td rowspan="4" align="center"> 下午</td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
    </tr>
    <tr>
        <td>   </td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
    </tr>
    <tr>
        <td>   </td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
    </tr>
    <tr>
        <td>   </td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
        <td>   </td>
    </tr>
</table>
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